Specifically, DatagramSockets and crossdomain.xml. I specify DatagramSockets only because I hear they use UDP which, due to its speed, is a much better option than ordinary TCP sockets. I’ve already bumbled through several posts on Stack overflow to no avail and currently I’m winding up with something about Security Sandbox Violation error #2048 no matter what I do.
Basically, I’m entirely lost with this stuff. All I want is a simple client-server system where I can at least send messages using UDP.